I don't know much about this, not having a mechanical valve, but I think Ross raises a very good point. My understanding is that the risk of drinking alcohol with Coumadin is a whole other issue than, say, eating a big spinach salad. It isn't so much that it will change the INR (although for all I know it may do that as well) as that it can result in serious stomach bleeding. If that is the case, I wouldn't think that consistancy or home testing would make any difference. Instead, I would think the key would be making sure that one is periodically screened for ulcers (is there some relatively painless and inexpensive screen for this? )
If someone else knows more about this and I've gotten it wrong, please let me know. This is a question I've wondered about alot (liking a few beers myself
) and would really appreciate additional clarification. Thanks, Kate